login: panic: vm_page_assert_busied: page 0xfffffe0000138958 not busy @ /usr/home/markj/freebsd/sys/vm/vm_page.c:4973
cpuid = 0
time = 1571172358
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe000d1fb630
vpanic() at vpanic+0x1e0/frame 0xfffffe000d1fb690
panic() at panic+0x43/frame 0xfffffe000d1fb6f0
vm_page_valid() at vm_page_valid+0x72/frame 0xfffffe000d1fb710
vnode_pager_generic_getpages_done() at vnode_pager_generic_getpages_done+0x238/frame 0xfffffe000d1fb780
vnode_pager_generic_getpages_done_async() at vnode_pager_generic_getpages_done_async+0x1b/frame 0xfffffe000d1fb7b0
bufdone() at bufdone+0xa1/frame 0xfffffe000d1fb830
g_io_deliver() at g_io_deliver+0x35b/frame 0xfffffe000d1fb890
g_io_deliver() at g_io_deliver+0x35b/frame 0xfffffe000d1fb8f0
g_io_deliver() at g_io_deliver+0x35b/frame 0xfffffe000d1fb950
g_disk_done() at g_disk_done+0x179/frame 0xfffffe000d1fb9a0
vtblk_vq_intr() at vtblk_vq_intr+0x1cd/frame 0xfffffe000d1fb9f0
ithread_loop() at ithread_loop+0x2f2/frame 0xfffffe000d1fba60
fork_exit() at fork_exit+0xb0/frame 0xfffffe000d1fbab0
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe000d1fbab0
--- trap 0, rip = 0, rsp = 0, rbp = 0 ---
Uptime: 3m4s
netdump: overwriting mbuf zone pointers
netdump in progress. searching for server...
netdumping to 169.254.0.1 (02:b4:20:6f:c6:00)
Dumping 98 out of 468 MB:..17%..33%..49%..65%..81%..98%
netdump finished.

Dump complete